package com.springsecurity.handler;

import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 自定义登录 失败 处理器(handler)
 */
public class MyAuthenticationFailureHandler implements AuthenticationFailureHandler {
    private String url;
    public MyAuthenticationFailureHandler(String url) {
        this.url = url;
    }

    @Override
    public void onAuthenticationFailure(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, AuthenticationException e) throws IOException, ServletException {
        // 使用重定向跳转到登录失败页面
        httpServletResponse.sendRedirect(url);

    }
}
